Search a number
-
+
808158449 = 7115451207
BaseRepresentation
bin110000001010111…
…000010011110001
32002022200200222102
4300022320103301
53123342032244
6212105350145
726012143040
oct6012702361
92068620872
10808158449
1138520344a
121a6798355
13cb57b487
1479490557
154ae3954e
hex302b84f1

808158449 has 4 divisors (see below), whose sum is σ = 923609664. Its totient is φ = 692707236.

The previous prime is 808158443. The next prime is 808158451. The reversal of 808158449 is 944851808.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 808158449 - 24 = 808158433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (808158443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57725597 + ... + 57725610.

It is an arithmetic number, because the mean of its divisors is an integer number (230902416).

Almost surely, 2808158449 is an apocalyptic number.

It is an amenable number.

808158449 is a deficient number, since it is larger than the sum of its proper divisors (115451215).

808158449 is a wasteful number, since it uses less digits than its factorization.

808158449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115451214.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 808158449 is about 28428.1277786632. The cubic root of 808158449 is about 931.4627802960.

The spelling of 808158449 in words is "eight hundred eight million, one hundred fifty-eight thousand, four hundred forty-nine".

Divisors: 1 7 115451207 808158449